Former President George W. Bush pauses to collect himself as he delivers the eulogy during the funeral for his father, former President George H.W. Bush, at the National Cathedral in Washington, D.C., on Wednesday, Dec. 5, 2018. Alex Brandon, AP

Wednesday morning, a final salute is rendered by the honor guard standing watch over the flag-draped casket of the late president as the public viewing comes to an end at the U.S. Capitol Rotunda. J. Scott Applewhite, AP

The hearse carrying the flag-draped casket of former President George H.W. Bush passes by the White House from the Capitol, heading to a State Funeral at the National Cathedral. Jacquelyn Martin, AP

The remains of former President George H. W. Bush arrive at the National Cathedral in Washington, D.C., for his funeral. Alex Edelman, AFP/Getty Images

Former President George W. Bush, right, and his brother, former Florida Gov. Jeb Bush, arrive for the funeral for their father, former President George H. W. Bush, at the National Cathedral. Alex Edelman, AFP/Getty Images

Former Vice President Dan Quayle greets German Chancellor Angela Merkel before the start of the funderal for former President George H.W. Bush at the National Cathedral. Carolyn Kaster, AP

Professional golfer Phil Mickelson, center, arrives for the funeral at the National Cathedral in Washington. Susan Walsh, AP

Mourners pack the National Cathedral in Washington for the State Funeral for former President George H.W. Bush. Andrew Harnik, AP

The flag-draped casket of former President George H.W. Bush is carried by a military honor guard past former President George W. Bush and wife Laura Bush, President Donald Trump, first lady Melania Trump, former President Barack Obama, Michelle Obama, former President Bill Clinton, former Secretary of State Hillary Clinton, former President Jimmy Carter and Rosalynn Carter during the State Funeral. Carolyn Kaster, AP

President Donald Trump, shakes hands with former President Barack Obama. Five former presidents and first ladies attended the service. Brendan Smialowski, AFP/Getty Images

President Donald Trump, first lady Melania Trump, former President Barack Obama, former first lady Michelle Obama, former President Bill Clinton, former first lady Hillary Clinton, former President Jimmy Carter, and former first lady Rosalynn Carter smile during remarks at the state funeral of former President George H.W. Bush. Behind them are Vice President Mike Pence and former vice presidents Dan Quayle, Dick Cheney, Joe Biden and their wives. Brendan Smialowski, AFP/Getty Images

In his eulogy, former President George W. Bush said that his father "showed me what it means to be a president that serves with integrity, leads with courage and acts with love in his heart for the citizens of our country." Pool, Getty Images

President George W. Bush walks to his seat after greeting President Donald Trump, first lady Melania Trump, former President Barack Obama, Michelle Obama, former President Bill Clinton, former Secretary of State Hillary Clinton, former President Jimmy Carter and Rosalynn Carter. Carolyn Kaster, AP

Former President George Bush touches the flag-draped casket of his father as he prepares to speak during the State Funeral at the National Cathedral. Andrew Harnik, AP

The flag-draped casket of former President George H.W. Bush is carried out of the National Cathedral by a military honor guard. Andrew Harnik, AP

The Bush family departs the National Cathedral at the close of the state funeral for former president George H.W. Bush. ALEX EDELMAN, AFP/Getty Images

A joint service honor guard carries the casket of former President George H.W. Bush to an awaiting hearse after the service. Alex Wong, Getty Images

Brent Scowcroft, left, national security adviser for President George H.W. Bush, and former Secretary of State Henry Kissinger exchange greetings following the State Funeral. Andrew Harnik, pool, Getty Images

Police mounted on horses salute as the hearse carrying former President George H.W. Bush passes by the World War II Memorial Wednesday, Dec. 5, 2018, in Washington. Alex Brandon, AP

A joint military honor guard carries the casket of former President George H.W. Bush before it is loaded onto a U.S. Air Force 747, that is being called "Special Mission 41," at Andrews Air Force Base, Maryland. His remains will be buried on Dec. 6 at Texas A&M University on the grounds of the George H.W. Bush Presidential Library Center. Mark Wilson, Getty Images

Former President George W. Bush waves to the crowd along with his wife, Laura Bush, after the flag-draped casket of former President George H.W. Bush was carried by a joint services military honor guard to an Air Force jet during a departure ceremony at Andrews Air Force Base, Md. Steve Helber, AP

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